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Simplifying 4(a + 3) + -1(a + 2) = 13 Reorder the terms: 4(3 + a) + -1(a + 2) = 13 (3 * 4 + a * 4) + -1(a + 2) = 13 (12 + 4a) + -1(a + 2) = 13 Reorder the terms: 12 + 4a + -1(2 + a) = 13 12 + 4a + (2 * -1 + a * -1) = 13 12 + 4a + (-2 + -1a) = 13 Reorder the terms: 12 + -2 + 4a + -1a = 13 Combine like terms: 12 + -2 = 10 10 + 4a + -1a = 13 Combine like terms: 4a + -1a = 3a 10 + 3a = 13 Solving 10 + 3a = 13 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + 3a = 13 + -10 Combine like terms: 10 + -10 = 0 0 + 3a = 13 + -10 3a = 13 + -10 Combine like terms: 13 + -10 = 3 3a = 3 Divide each side by '3'. a = 1 Simplifying a = 1
| (1)2= | | (-4x)(-4x)= | | -2(2v-2)+4v=5+3(6v-3) | | 50+2=144h | | 3(v-1)=7v+3-2(-6v-3) | | x+x/2=3.5 | | 5(y-4)-5=-3(-8y+9)-9y | | -84+63=x | | 100+20=460m | | -2(8x-1)+2x=-5(x+2) | | 8c=40 | | 28x=-4y | | 14.95+0.13n=50 | | e/4=20 | | 9+3(3x-4)=-2(6x-3)+6x | | -15.00+0.39n=50 | | 8+6=30t | | 7d=35 | | 2(u-1)=4u+3-2(-8u-5) | | d/14=7 | | 6w=60 | | -6(-2y+7)-9y=7(y-5)-9 | | 15x+12=8-12x | | 5+2=20m | | 14.95+0.13n=-15+0.39n | | -2(3y-8)+4y=2(y+3) | | 6+2(5y-2)=-3(3y-2)9y | | 10y-3/2y+8=7+6y-41/2 | | 3x+4x/3=9.75 | | y-3+4(3y+1)=-2(y+4) | | 12x-8=6x+27 | | -4(-6u+8)-4u=2(u-6)-5 |